class JSONThermostat

@author Jop Bouckaert Handles JSON input

Attributes

calculator[RW]

parsed[RW]

parsed_range[RW]

parsed_range_celsius[RW]

parsed_wanted_temperature[RW]

parsed_wanted_temperature_celsius[RW]

thermostat[RW]

Public Class Methods

new(input_json) click to toggle source

# File lib/json_thermostat.rb, line 16
def initialize(input_json)
  @calculator = UnitCalculator.new
  parse_json(input_json)
  set_setting
end

Public Instance Methods

check_celsius() click to toggle source

Checks if unit is celsius

# File lib/json_thermostat.rb, line 80
def check_celsius
  unit == 'celsius'
end

check_fahrenheit() click to toggle source

Checks if unit is fahrenheit

# File lib/json_thermostat.rb, line 70
def check_fahrenheit
  unit == 'fahrenheit'
end

check_kelvin() click to toggle source

Checks if unit is kelvin

# File lib/json_thermostat.rb, line 75
def check_kelvin
  unit == 'kelvin'
end

parse_json(input_json) click to toggle source

Parses the input JSON

# File lib/json_thermostat.rb, line 34
def parse_json(input_json)
  @parsed = JSON.parse(input_json)
  @parsed_wanted_temperature = @parsed['temperature']
  @parsed_range = @parsed['range']
end

range() click to toggle source

Returns range in celsius @return [Numeric] Number with the calculated range in celsius

# File lib/json_thermostat.rb, line 109
def range
  if check_fahrenheit
    @calculator.calculate_fahrenheit_range(@parsed_range)
  elsif check_kelvin || check_celsius
    @parsed_range
  end
end

set_setting() click to toggle source

Sets wanted values

# File lib/json_thermostat.rb, line 41
def set_setting
  if unit
    @parsed_wanted_temperature_celsius =
      temperature(@parsed_wanted_temperature)
    @parsed_range_celsius = range
  else
    @parsed_wanted_temperature_celsius = @parsed_wanted_temperature
    @parsed_range_celsius = @parsed_range
  end
end

set_thermostat() click to toggle source

Call the thermostat class with updated and wanted values

# File lib/json_thermostat.rb, line 85
def set_thermostat
  @thermostat = Thermostat.new(
    current_value: @parsed_temperature_update_celsius,
    wanted_value: @parsed_wanted_temperature_celsius,
    range: @parsed_range_celsius
  )
  @thermostat.state
end

set_update() click to toggle source

Sets updated values

# File lib/json_thermostat.rb, line 53
def set_update
  if unit
    @parsed_temperature_update_celsius =
      temperature(@parsed_temperature_update)
    @parsed_range_celsius = range
  else
    @parsed_temperature_update_celsius = @parsed_temperature_update
    @parsed_range_celsius = @parsed_range
  end
end

temperature(temperature) click to toggle source

Returns temperature in celsius @param temperature [Numeric] Number with given temperature @return [Numeric] Number with the calculated value in celsius

# File lib/json_thermostat.rb, line 97
def temperature(temperature)
  if check_fahrenheit
    @calculator.calculate_fahrenheit(temperature)
  elsif check_kelvin
    @calculator.calculate_kelvin(temperature)
  elsif check_celsius
    temperature
  end
end

unit() click to toggle source

Returns the unit

# File lib/json_thermostat.rb, line 65
def unit
  @parsed['unit']
end

update(update_json) click to toggle source

Update values @param update_json [String] JSON string with update value @return [String] JSON string with states of cooling and heating

# File lib/json_thermostat.rb, line 25
def update(update_json)
  @parsed = JSON.parse(update_json)
  @parsed_temperature_update = @parsed['temperature']
  set_update
  set_thermostat
  JSON.generate(cooling: @thermostat.cooling, heating: @thermostat.heating)
end